18325522. ROLLER PIN DECOUPLING TYPE CDA SYSTEM simplified abstract (HYUNDAI MOTOR COMPANY)
Contents
ROLLER PIN DECOUPLING TYPE CDA SYSTEM
Organization Name
Inventor(s)
SEUNG-WOO Shin of Hwaseong-si (KR)
ROLLER PIN DECOUPLING TYPE CDA SYSTEM - A simplified explanation of the abstract
This abstract first appeared for US patent application 18325522 titled 'ROLLER PIN DECOUPLING TYPE CDA SYSTEM
Simplified Explanation
The roller pin decoupling type cylinder deactivation (CDA) system described in the patent application allows for improved operation efficiency for different engine operating conditions. Here are some key points to understand the innovation:
- The system includes a roller rocker arm, rocker shaft, camshaft, and actuation valve.
- When oil is not supplied to a rocker shaft sub-passage and hydraulic pressure is released from the actuation valve, the CDA is generated.
- The roller can switch between a non-rotating state and a rotating state based on the operation of the CDA.
- Control over the system mechanism is enhanced through restriction control of the roller pin by the actuation valve.
- Potential Applications
This technology could be applied in automotive engines to improve fuel efficiency and performance by deactivating cylinders when they are not needed.
- Problems Solved
The system addresses the challenge of optimizing engine operation under various conditions by efficiently deactivating cylinders when necessary.
- Benefits
- Improved fuel efficiency - Enhanced engine performance - Flexible control over cylinder deactivation
- Potential Commercial Applications
This technology could be valuable for automotive manufacturers looking to enhance the efficiency and performance of their engines.
- Possible Prior Art
Prior art in the field of engine cylinder deactivation systems may include similar technologies that aim to improve fuel efficiency and engine performance.
- Unanswered Questions
- How does the system handle potential malfunctions or failures?
The patent application does not provide information on how the system addresses malfunctions or failures that may occur during operation.
- What is the cost implication of implementing this technology in engines?
The cost aspect of integrating this system into engines is not discussed in the patent application.
Original Abstract Submitted
A roller pin decoupling type cylinder deactivation (CDA) system includes a roller rocker arm, rocker shaft, a camshaft, and an actuation valve. When oil is not supplied to a rocker shaft sub passage of the rocker shaft and a hydraulic pressure is released from the actuation valve, the roller and the pin are not restrained so that the CDA is generated. Thus, the roller is switched to a non-rotating state and a rotating state according to non-operation and operation of the CDA. In particular, a degree of freedom of control over a system mechanism is imparted due to restriction control of the roller pin through the actuation valve which is operated by a hydraulic pressure, which makes it possible to improve operation efficiency for each engine operating condition.
